Quick die changing tool for screw press

Abstract

The utility model provides a quick die changing tool for a screw press, which comprises an upper backing plate, an upper die backing plate, an upper die frame, a lower die frame, a lower die backing plate and a lower backing plate, and the upper die frame is connected to the lower end of the upper die backing plate through a first connecting piece and a second connecting piece. The upper die base plate is movably connected to the lower end of the upper base plate through a first T-shaped sliding nut set, the upper base plate is connected to the lower end of a press sliding block, the lower die frame is connected to the upper end of the lower die base plate through a first connecting piece and a second connecting piece, and the lower die base plate is connected to the upper end of the lower base plate. The lower cushion plate is connected to the upper end of the press bottom plate, the upper die frame is arranged above the lower die frame, the upper die frame is provided with an upper taper hole which is shrunk downwards, and the lower die frame is provided with a lower taper hole which is shrunk upwards. The utility model has the advantages of convenient and fast die change, short time, high efficiency, stable die installation and high precision.

Description

Technical Field

[0001] The utility model relates to the field of hot die forging screw presses, and particularly relates to a quick die-changing tooling for screw presses. Background Technique

[0002] As a kind of hot forging equipment, screw presses account for a large proportion. There are significant differences in the screw presses produced by different enterprises, and there are also significant differences in toolings such as die seats and die frames. When replacing dies on existing screw presses, the operation is often frequent and time-consuming, which affects production efficiency. At the same time, there may be problems such as unstable installation in traditional die-changing methods, which affect machining accuracy and safety. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick die-changing tooling for screw presses, which solves the technical problems of long die-changing time, low efficiency and unstable installation of existing screw presses described in the background technique.

[0004] To achieve the above purpose, the utility model provides a quick die-changing tooling for screw presses, which includes an upper backing plate, an upper die backing plate, an upper die frame, a lower die frame, a lower die backing plate, and a lower backing plate. The upper die frame is connected to the lower end of the upper die backing plate through a first connecting piece and a second connecting piece. The upper die backing plate is movably connected to the lower end of the upper backing plate through a first T-shaped sliding nut group. The upper backing plate is connected to the lower end of the press slider. The lower die frame is connected to the upper end of the lower die backing plate through a first connecting piece and a second connecting piece. The lower die backing plate is connected to the upper end of the lower backing plate. The lower backing plate is connected to the upper end of the press bottom plate. The upper die frame is arranged above the lower die frame. The upper die frame is provided with an upper tapered hole that tapers downward, and the lower die frame is provided with a lower tapered hole that tapers upward.

[0005] Further, the upper backing plate is movably connected to the lower end of the press slider through a second T-shaped sliding nut group.

[0006] Further, the lower backing plate is movably connected to the upper end of the press bottom plate through a second T-shaped sliding nut group.

[0007] Further, upper die round pads are inlaid on the upper die backing plate, and lower die round pads are inlaid on the lower die backing plate.

[0008] Compared with the prior art, the beneficial effect of the utility model is that the connection and fixation of the upper die frame and the lower die frame are realized through the first connecting piece and the second connecting piece, and the upper die backing plate is detachably connected to the lower end of the upper backing plate through the first T-shaped sliding nut group. Only by loosening some parts can disassembly be carried out, which saves die-changing time and improves die-changing efficiency. Upper tapered holes and lower tapered holes are provided in the upper die frame and the lower die frame. When changing dies, the die frame and the die are pressed tightly by relying on the tapered surface, which ensures the installation accuracy of the die. Description of the Drawings

[0009] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0010] Figure 2 is Figure 1 a sectional view taken along the A-A direction in

[0011] Figure 3 is Figure 1 a sectional view taken along the B-B direction in

[0012] Figure 4 is Figure 2 a partial enlarged view in

[0013] Figure 5 is an exploded perspective view of the present utility model;

[0014] Figure 6 is an exploded perspective view of another perspective of the present utility model;

[0015] In the figure, 1. press slider; 2. upper backing plate; 3. upper die backing plate; 4. upper die frame; 5. lower die frame; 6. lower die backing plate; 7. lower backing plate; 8. press bottom plate; 9. upper die round spacer; 10. upper die; 11. lower die; 12. lower die round spacer; 13. lifting ring; 14. upper tapered hole; 15. lower tapered hole; 16. first T-shaped sliding nut group; 17. second T-shaped sliding nut group; 18. first connecting piece; 19. second connecting piece; 20. first T-shaped chute; 21. long bolt; 22. T-shaped nut; 23. screw rod; 24. connecting nut; 25. partition plate; 26. gasket; 27. first U-shaped groove; 28. trapezoidal groove; 29. protrusion; 30. counterbore; 31. connecting hole; 32. notch; 33. second T-shaped chute; 34. second U-shaped groove. Detailed implementation manners

[0016] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0018] It should be noted that like reference numerals and letters refer to like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model.

[0020] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] The following will, with reference to the drawings, give a detailed description of some embodiments of the present utility model.

[0023] A rapid die-changing tooling for a screw press according to the present utility model includes an upper backing plate 2, an upper die backing plate 3, an upper die frame 4, a lower die frame 5, a lower die backing plate 6, and a lower backing plate 7. As shown in the attached Figures 1-3 drawing, the upper die frame 4 is arranged below the upper die backing plate 3, the upper die backing plate 3 is arranged below the upper backing plate 2, and the upper backing plate 2 is arranged below the press slider 1; the lower die frame 5 is arranged above the lower die backing plate 6, the lower die backing plate 6 is arranged above the lower backing plate 7, the lower backing plate 7 is arranged on the press bottom plate 8, and the upper die frame 4 is adjacent to the lower die frame 5 and is located above the lower die frame 5.

[0024] Specifically, the upper die frame 4 is square, see the attached Figures 4-5。A downwardly tapered upper conical hole 14 is provided in the middle of the upper die holder 4, and connection holes 31 are provided at the four corners. A notch 32 is provided at the connection hole on one side. The upper die backing plate 3 is arranged above the upper die holder 4. The upper die backing plate 3 is also square, and a counterbore 30 corresponding to the connection hole 31 of the upper die holder 4 is provided thereon. Protrusions 29 are provided at both ends, and a first U-shaped groove 27 is provided on the protrusions 29. The upper die holder 4 is connected to the lower end of the upper die backing plate 3 through a first connecting member 18 and a second connecting member 19. Among them, the first connecting member 18 is arranged on the side without the notch 32, and the second connecting member 19 is arranged on the side with the notch 32. The first connecting member 18 includes a long bolt 21 and a connecting nut 24. The second connecting member 19 uses the same parts as the first connecting member 18, and a gasket 26 is additionally provided on the basis of the first connecting member 18. The long bolt 21 passes through the upper die holder 4 and the upper die backing plate 3 from bottom to top and is screwed into the connecting nut 24 located in the counterbore 30. The first connecting member 18 mainly plays a role of connecting and fixing. In addition to connection, the second connecting member 19 can also play a certain role in adjusting the upper die holder 4.

[0025] The upper backing plate 2 is also square, arranged above the upper die backing plate 3, and is connected to the upper die backing plate 3 through a first T-shaped sliding nut group 16. The first T-shaped sliding nut group 16 includes a screw rod 23, a T-shaped nut 22, a connecting nut 24, and a partition plate 25. The T-shaped nut 22 is connected to the upper end of the screw rod 23, the connecting nut 24 is connected to the lower end of the screw rod 23, and the partition plate 25 is limited on the screw rod 23. The T-shaped nut 22 at the upper end of the first T-shaped sliding nut group 16 is arranged in the first T-shaped sliding groove 20 at the bottom of the upper backing plate 2, the partition plate 25 at the lower end is located under the protrusions 29 at both ends of the upper die backing plate 3, and the screw rod 23 is located in the first U-shaped groove 27. Tightening the connecting nut 24 at the bottom of the first T-shaped sliding nut group 16 fixes the upper die backing plate 3 under the upper backing plate 2. When changing the die, only need to loosen the connecting nut 24 at the lower end of the first T-shaped sliding nut group 16 to quickly separate the upper die backing plate 3 and the upper backing plate 2.

[0026] In a preferred solution, the upper backing plate 2 is detachably connected to the lower part of the press slide block 1 through a second T-shaped sliding nut group 17, and its connection principle is basically the same as that between the upper backing plate 2 and the upper die backing plate 3. A second T-shaped sliding groove 33 is provided at the bottom of the press slide block 1, and second U-shaped grooves 34 and trapezoidal grooves 28 for receiving the second U-shaped grooves 34 are provided at both ends of the upper backing plate 2. The second T-shaped sliding nut group 17 is composed of the same parts as the first T-shaped sliding nut group 16. The difference from the first T-shaped sliding nut group 16 is that the partition plate 25 in the second T-shaped sliding nut group 17 is changed to a gasket 26.

[0027] The structure of the lower die holder 5 is the same as that of the upper die holder 4, and a downward-tapering lower conical hole 15 is provided in the middle. The lower die holder 5 is mirror-inverted on the lower die backing plate 6, and the lower die holder 5 and the lower die backing plate 6 are connected by the same connecting components and methods as those of the upper die holder 4 and the upper die backing plate 3. The lower die backing plate 6 and the lower backing plate 7 are connected together by a first connecting member 18, and the lower backing plate 7 is fixed on the press bottom plate 8. Preferably, the connection method between the lower backing plate 7 and the press bottom plate 8 is the same as the connection method between the upper backing plate 2 and the press slide block 1.

[0028] The working principle of the utility model is as follows: First, assemble the utility model together. When changing the die, loosen the first connecting member 18 and the second connecting member 19, remove the upper die holder 4 and the lower die holder 5 respectively, place the lower die 11 into the lower conical hole 15 at the center of the lower die holder 5, and then connect the lower die holder 5 to the lower die backing plate 6. Place the upper die 10 into the upper conical hole 14 at the center of the upper die holder 4, and then invert the whole assembly onto the lower die holder 5. The die holder and the die are pressed tightly against each other by the conical surface. Loosen the first T-shaped sliding nut group 16 between the upper backing plate 2 and the upper die backing plate 3, use the square lock between the upper and lower dies for positioning and alignment. After alignment, tighten the upper die holder 4 to the lower end of the upper die backing plate 3, and then re-tighten the first T-shaped sliding nut group 16.

[0029] The upper die backing plate 3 and the lower die backing plate 6 can be made of 45# steel. In order to prevent the upper die backing plate 3 and the lower die backing plate 6 from collapsing and deforming during forging, preferably, an upper die round cushion block 9 is inlaid in the middle of the upper die backing plate 3, and a lower die round cushion block 12 is inlaid in the middle of the lower die backing plate 6. The upper die round cushion block 9 and the lower die round cushion block 12 are made of H13 steel. In order to facilitate movement, lifting rings 13 can also be provided at both ends of the upper backing plate 2 and the lower backing plate 7.

[0030] The basic principles and advantages of the present utility model have been described above. For those skilled in the art, the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, after reading this specification, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features therein. Without departing from the concept of the present utility model, any obvious replacement is within the protection scope of the present utility model.

Claims

1. A quick die change tool for a screw press, characterized in that: The invention comprises an upper pad (2), an upper die pad (3), an upper die frame (4), a lower die frame (5), a lower die pad (6), and a lower pad (7); the upper die frame (4) is connected to the lower end of the upper die pad (3) via a first connecting member (18) and a second connecting member (19); the upper die pad (3) is movably connected to the lower end of the upper pad (2) via a first T-shaped sliding nut group (16); the upper pad (2) is connected to the lower end of a press slide (1); and the lower The mold frame (5) is connected to the upper end of the lower mold pad (6) through a first connecting member (18) and a second connecting member (19), the lower mold pad (6) is connected to the upper end of the lower pad (7), the lower pad (7) is connected to the upper end of the press bottom plate (8), the upper mold frame (4) is arranged above the lower mold frame (5), the upper mold frame (4) is provided with an upper tapered hole (14) that tapers downward, and the lower mold frame (5) is provided with a lower tapered hole (15) that tapers upward.

2. The screw press quick die change tooling according to claim 1, characterized in that: The upper pad (2) is movably connected to the lower end of the press slide (1) via a second T-shaped sliding nut group (17).

3. The screw press quick die change tooling according to claim 2, characterized in that: The lower pad (7) is movably connected to the upper end of the press bottom plate (8) via a second T-shaped sliding nut set (17).

4. The quick die change tooling for a screw press according to claim 3, characterized in that: An upper die circular pad (9) is inlaid on the upper die pad plate (3), and a lower die circular pad (12) is inlaid on the lower die pad plate (6).

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